Description
To Be OFFERED AT AUCTION at RM Sothebys' Paris event, 28 January 2026.
€1, 400, 000 - €1, 800, 000 EUR
One of approximately 102 examples of the Series IV Spider built
Wonderfully well preserved; retains its matching-numbers engine
Owned by the Mazzocchi family for 58 years; displayed at the QuattroRuote museum
A previous Mille Miglia Storica entrant; eligible for future participation
History file includes FIVA Identity Card and Mille Miglia Register papers
Please note if this vehicle is exported outside of the EU, an export licence will be required.
Veuillez noter que si ce véhicule est exporté hors de l'UE, une licence d'exportation sera nécessaire.
Built in 1930, chassis number 8513041 offered here made the short trip from the Alfa Romeo factory across Milan to be dressed in alloy bodywork by Carrozzeria Sport, who finished it in a style closely resembling that of contemporaries Zagato and Castagna. This 6C 1750 was then supplied new to a marque collector based to the south in Genoa before another citizen of the port city bought the car the following August.
Per the research compiled by long-time registrar John de Boer, the car was raced by its second keeper during 1932 before it was returned to Alfa Romeo in 1933 and sold once again to a resident of Genoa. Chassis 8513041 found pastures new when it was purchased in January 1935 by Catullo Lami in Pisa prior to a 1936 acquisition by a custodian living in a town near Cremona.
The Gran Sport Spider finally found a more permanent home when it was bought in May 1958 by Gianni Mazzocchi—the publishing magnate and owner of Editoriale Domus. While the body and drivetrain were found compete, the engine would not start. Subsequent repairs meant that Mazzocchi had to turn down an approach from the Director General of Metro-Goldwyn-Mayer Films for the car to star in a movie being made in France. The letter exchange is contained within the history file.
Thereafter, the Alfa Romeo formed part of the collection at the QuattroRuote automotive magazine museum for almost 60 years. During its time with the Mazzocchi family, chassis 8513041 was enjoyed in the 1962 and 1965 editions of the Stresa to Mottarone rally. Following the latter appearance, the car was restored—including a repaint of the body and rebuild of the straight-six engine. The Alfa Romeo then featured in the Mille Miglia Storica, finishing the famed event in 1986 and 1987. Thanks, in part, to its long residency as part of the museum’s stable and the long-term care it has received from marque specialist Gianni Torelli, chassis 8513041 is notably well preserved. Of its many original touches, the car significantly retains its matching-numbers engine.
Sold to the consigning owner in 2016, the Alfa Romeo has continued its participation in a series of high-profile historic events. This includes taking on the Gran Premio Nuvolari regularity rally in 2019, 2021, 2022, and 2023, the Targa Florio, and a further entry in the Mille Miglia in 2024. Accordingly, chassis 8513041 is accompanied by its FIVA Identity Card issued in October 2018, Mille Miglia Register papers valid until June 2026, and a fascinating history file. It is further offered with a generous supply of spare parts—for a full breakdown, please speak to an RM Sotheby’s Car Specialist.
Across six series, the 6C 1750 ranks as one of the most collectible interwar Alfa Romeo models for its competition pedigree and advanced engineering. This fabulously authentic example, dressed in lesser-spotted bodywork by Carrozzeria Sport and boasting its matching-numbers engine, makes for an outstanding candidate for continued participation in many of the world’s most prestigious driving and concours events.
To view this car and others currently consigned to this auction, please visit the RM website at rmsothebys. com/ auctions/ pa26/.
